How to synchronize a cell in form with a cell in MS excel sheet

Question

dear all
I can successfuly export data to excell using the ole2 package. But the problem is that exporting data from A datablock in a form to Excel sheet is not enough.
I need to automaticaly copy updates occures on the datablock to its equilivant in the excel sheet. In other words , i need to synchronize my datablock items with facing cells in the excel sheet,so the cells'values in excel sheet automatiacly changes to be the values in the datablock items
please help

Answer 1

Dear all
I can successfuly export data to excell using the ole2 package. But the problem is that exporting data from A datablock in a form to Excel sheet is not enough.
I need to automaticaly copy updates occures on the datablock to its equilivant in the excel sheet. In other words , I need to synchronize my datablock items with facing cells in the excel sheet,so the cells'values in excel sheet automatiacly changes to be the values in the datablock items
I searched the web several times . Some people adviced me to use "Apache-jakarta-poi" . It is a pure java code. But my knoledge in java is limited.I asked on Oracle forums -
how to synchronize a cell in form with a cell in MS excel sheet - but no one can help
I tried the oracle forms demo "OLEEXCEL.fmb" . But this form is not working correct .
I need to embed ole2 in my form that holds excel sheet and passes values from text items to the excel sheet.
My last try is that I did the following :
1- in the main canvas i insert the OLE2 control
2- Right Click and choose insert
3- from the dialog i chosed Excel Sheet
4- I placed a button on my canvas then i on the button I write this code
declare
worksheet ole2.obj_type;
cell ole2.obj_type;
args ole2.list_type;
begin
forms_ole2.activate_server('block1.excel_sheet');
worksheet := forms_ole2.get_interface_pointer('block1.excel');
args := ole2.create_arglist;
ole2.add_arg(args,1) -- column1
ole2.add_arg(args,1) -- cell1
cell := ole2.invoke_obj(worksheet,'cell',args);
ole2.destroy_arglist(args);
ole2.set_property('cell','value',:text1);
ole2.release_obj(cell);
ole2.release_obj(worksheet);
end;
I get this error ora-305500
and when i debug , the code stop in this line : cell := ole2.invoke_obj(worksheet,'cell',args);
please help